From this day you must be a stranger to one of your parents.

从今天开始，你将与双亲之一成为陌生人。

youdao

I would rather be a stranger to the injury, also can not afford to be familiar with the people a little bit.

我宁愿被陌生人狠狠的伤害，也经不起熟悉的人一点诋毁。

youdao

You would not be surprised if a stranger tried to shake hands when you were introduced, but you might be a little startled if they bowed, started to stroke you or kissed you on both cheeks.

当你被介绍给陌生人时，如果对方试图和你握手，你不会感到惊讶，但如果对方鞠躬、抚摸你或亲吻你的双颊，此时你可能会有点吃惊。

youdao

Then, when the husband approaches 60 - the national retirement age in Japan - the wife gradually realises she is going to be thrust into the permanent company of a man who has grown to be a stranger.

BBC: NEWS | Programmes | This World | Retired husband syndrome

"Initially Shaun said that I wouldn't be eligible because I got in contact with him and it has to be a stranger, " she said.

BBC: Man seeks strangers on London Underground for orchestra

Turkle suggests that this kind of confession is a way of deflecting direct conflict: it can be easier to tell your woes and secrets to a stranger (or a lot of strangers) than to heal your wounds with people who are actually in your life.

NEWYORKER: The Disconnect